{ "id": "2210.09939", "version": "v1", "published": "2022-10-18T15:42:39.000Z", "updated": "2022-10-18T15:42:39.000Z", "title": "A variant of Wilson's functional equation on semigroups", "authors": [ "Youssef Aserrar", "Abdellatif Chahbi", "Elhoucien Elqorachi" ], "categories": [ "math.FA" ], "abstract": "We determine the complex-valued solutions of the following functional equation \\[f(xy)+\\mu (y)f(\\sigma (y)x) = 2f(x)g(y),\\quad x,y\\in S,\\] where $S$ is a semigroup and $\\sigma$ an automorphism, $\\mu :S\\rightarrow \\mathbb{C}$ is a multiplicative function such that $\\mu (x\\sigma (x))=1$ for all $x\\in S$.", "revisions": [ { "version": "v1", "updated": "2022-10-18T15:42:39.000Z" } ], "analyses": { "subjects": [ "39B32", "39B52" ], "keywords": [ "wilsons functional equation", "complex-valued solutions", "automorphism" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }